# Subnet Plus vs SD+ charge

The clearest difference is in-app purchases: SD+ charge at none against Subnet Plus's 1. SD+ charge also leads on ads (none vs shown) and iOS requirement (13.0 vs 26.0). On price, update cadence and device support there is nothing between them.

Both are free to download. Subnet Plus sells 1 one-off in-app purchase. SD+ charge asks for nothing beyond the download.

Subnet Plus ships an update every 2 weeks, SD+ charge every 9 days. The most recent releases landed on September 29, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | Subnet Plus | SD+ charge |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (54 ratings)](https://appshunter.io/ios/app/subnet-plus-subnet-calculator/id724663668/reviews)** | — |
| Number of ratings | **54** | — |
| Positive reviews | 89.2% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 2 weeks | **Every 9 days** |
| Monetization | Free | — |
| Size | 12 MB | 65 MB |
| Requires iOS | 26.0 | **13.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Ted Trentler](https://appshunter.io/developer/380264826) | [SANDISOLAR RENEWABLE ENERGY DEVELOPMENT INTERNATIONAL COMPANY LIMITED](https://appshunter.io/developer/1880253338) |

## What reviewers say

### Subnet Plus

[App page](https://appshunter.io/ios/app/subnet-plus-subnet-calculator/id724663668)

Calculate IP subnets with ease on your iPhone or iPad. This tool helps visualize binary and hex information for subnets, aiding in network studies and professional calculations. Save your calculated networks for future reference.

**Highlights:** Subnet calculation, Save calculated networks, Binary and hex display, Network address ranges, Broadcast IP addresses, Study aid for networking exams

**Features:** macOS Compatibility, Family Sharing, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| remove Ads | $4.99 | one-time |

**What reviewers like**

- 👍 Convenient and simple interface
- 👍 Practical and useful tool
- 👍 Saves locations and provides needed information
- 👍 Smart layout
- 👍 Great use of sliding octets for real-time effects

**What reviewers complain about**

- 🐛 Interface needs work
- 🐛 Text in subnet netmask field too large
- 🐛 Last octet not visible
- 🐛 No apparent way to enlarge field or change text
- 🐛 No landscape mode for iPad Pro

**Reported bugs**

- Text in subnet netmask field too large, last octet not visible
- Values truncated, cannot view full values
- Subnet mask and IP addresses truncated
- Cannot read all data
- Numbers truncated on iPhone 5s

**Requested features**

- Export option to share saved subnets
- Pay to remove ads
- Landscape mode for iPad Pro
- Update for visualising or adjusting screen on iOS 9
- Ability to type netmask


### SD+ charge

[App page](https://appshunter.io/ios/app/sd-plus-charge/id6759696978)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Subnet Plus free?

Subnet Plus is free to download, with in-app purchases available.

### Is SD+ charge free?

SD+ charge is free to download, with no in-app purchases.

### Do Subnet Plus or SD+ charge have ads?

Subnet Plus shows ads; SD+ charge does not.

### Which is updated more often, Subnet Plus or SD+ charge?

Subnet Plus ships an update every 2 weeks, and SD+ charge every 9 days. Most recently, Subnet Plus was updated on September 29, 2026 and SD+ charge on September 21, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*